History · Geography · One slider

Scrub through 4,000 years
of history on one map.

Drag the epoch slider from 2000 BCE to today: borders morph between historical snapshots, events surface around their dates, and famous journeys replay as animated routes — from Magellan's circumnavigation to the thinkers of Meiji Japan.

Chronomap — world map with epoch slider and a historical event card

The join between when and where

History apps are timelines. Geography apps are maps. Understanding lives in the join: what happened here, then?

First Circumnavigation event card, 1500 CE

Events with stories

Every event carries a sourced card — Magellan's fleet, one tap from its Wikipedia article, with a Play button that animates the journey across the map.

Clustered philosopher markers over Japan

Live knowledge modes

Military history, philosophy, literature, medicine, disasters — each mode pulls live Wikidata, ranked by prominence and clustered so the map stays readable.

Takayama Chogyū figure card with photo

People, placed in time

Zoom into 1910 Japan in philosophy mode and meet Takayama Chogyū — photo, biography, and region chips that slice results by prefecture.

Under the hood

The cartography is hand-rolled where it matters.

Morphing borders

Historical border snapshots interpolate smoothly as you scrub — normalized from wildly inconsistent polygon sources.

Wikidata, tamed

Live SPARQL queries merged with a bundled seed dataset, cached aggressively and ranked by real-world prominence.

Procedural wonders

Fourteen architecture archetypes rendered entirely in code, animating construction and collapse as their era passes.